Low-voltage organic field-effect transistors for flexible electronics

Ute Zschieschang, Reinhold Rodel, Ulrike Kraft, Kazuo Takimiya, Tarek Zaki, Florian Letzkus, Jorg Butschke, Harald Richter, Joachim N. Burghartz, Wei Xiong, Boris Murmann, Hagen Klauk

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A process for the fabrication of bottom-gate, top-contact (inverted staggered) organic thin-film transistors (TFTs) with channel lengths as short as 1 μm on flexible plastic substrates has been developed. The TFTs employ vacuum-deposited small-molecule semiconductors and a low-temperature-processed gate dielectric that is sufficiently thin to allow the TFTs to operate with voltages of about 3 V. The p-channel TFTs have an effective field-effect mobility of about 1 cm2/Vs, an on/off ratio of 107, and a signal propagation delay (measured in 11-stage ring oscillators) of 300 ns per stage. For the n-channel TFTs, an effective field-effect mobility of about 0.06 cm2/Vs, an on/off ratio of 106, and a signal propagation delay of 17 μs per stage have been obtained.

Original languageEnglish
Title of host publication2014 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, BCTM 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages100-106
Number of pages7
ISBN (Electronic)9781479972302
DOIs
Publication statusPublished - 2014 Dec 9
Externally publishedYes
Event2014 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, BCTM 2014 - Coronado, United States
Duration: 2014 Sep 282014 Oct 1

Publication series

NameProceedings of the IEEE Bipolar/BiCMOS Circuits and Technology Meeting
ISSN (Print)1088-9299

Other

Other2014 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, BCTM 2014
CountryUnited States
CityCoronado
Period14/9/2814/10/1

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Cite this

    Zschieschang, U., Rodel, R., Kraft, U., Takimiya, K., Zaki, T., Letzkus, F., Butschke, J., Richter, H., Burghartz, J. N., Xiong, W., Murmann, B., & Klauk, H. (2014). Low-voltage organic field-effect transistors for flexible electronics. In 2014 IEEE Bipolar/BiCMOS Circuits and Technology Meeting, BCTM 2014 (pp. 100-106). [6981295] (Proceedings of the IEEE Bipolar/BiCMOS Circuits and Technology Meeting). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/BCTM.2014.6981295